Remember Tariq Ramadan? He’s a grandson of Hassan al-Banna, the founder of the Muslim Brotherhood. This charming organization lives by its credo: “Allah is our objective. The Prophet is our leader. Qur’an is our law. Jihad is our way. Dying in the way of Allah is our highest hope.” Ramadan has specialized in what the French writer Caroline Fourest calls “doublespeak”: saying emollient things to Western audiences, and rather more inflammatory things when he addresses the Muslim faithful. The Bush administration denied Ramadan a visa to enter the United States, quite rightly in our opinion. But that ban was recently lifted, and Ramadan has been making the rounds of U.S. college campuses.

When we reported on Ramadan in this space a couple of years ago, we noted that one of the things that has made him such a star among left- ...